Datasheet > SF3-DC21V

SF3-DC21V

更新时间： 2024-09-22 22:22:03

品牌	Logo	应用领域
NAIS		继电器 PC 机械
页数	文件大小	规格书
7页	341K
描述
POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation

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SF3-DC21V 数据手册

(SF3 pending) (SF3 pending)

(SF3 pending)

POLARISED, MONOSTABLE

SAFETY RELAY with

(mechanical linked) forced

contacts operation

SF-RELAYS

enables to plan a circuit to detect welding

or go back to the beginning condition.

• Separated chamber structure

(2 Form A 2 Form B, 3 Form A 1 Form B,

4 Form A 4 Form B)

N.O. and N.C. side contacts are put in

each own space surrounded with a card

and a body-separater. That prevents

short circuit between contacts, which is

caused by their springs welding or

damaged.

25.0

.984

FEATURES

53.3±0.3

2.098±.012

• Forced operation contacts (2 Form A

2 Form B, 3 Form A 1 Form B)

16.5±0.3

.650±.012

N.O. and N.C. side contacts are

connected through a card so that one

interacts with the other in movement. In

case of a contact welding, the other

keeps a min. 0.5mm .020inch contact

gap.

• Independent operation contacts

(4 Form A 4 Form B)

Each pair of contacts is free from the

main armature and is independent from

each other. So if a N.O. pair of contacts

are welded, the other 3 N.O. contacts are

not effected (operate properly) That

25.0

.984

53.3±0.3

2.098±.012

16.5±0.3

.650±.012

33±0.3

53.3±0.3

1.299±.012

2.098±.012

• UL/CSA,TÜV, SEV approved

(UL/CSA, SEV of SF3 pending)

16.5±0.3

.650±.012

mm inch

SPECIFICATIONS

Contact

Characteristics (at 25°C 77°F, 50% Relative humidity)

SF2 SF3

180 cpm (at nominal voltage)

Type

SF2

SF3

SF4

2 Form A 3 Form A 4 Form A

2 Form B 1 Form B 4 Form B

Max. operating speed

Arrangement

Initial insulation resistance*²

Min. 1,000 MΩ at 500 V DC

Initial contact resistance, max.

(By voltage drop 6 V DC 1 A)

Between con-

tact sets

30 mΩ

2,500 Vrms

Contact material

Gold-ﬂashed silver alloy

6 A 250 V AC, 6 A 30 V DC

Initial break-

down voltage*³contacts

Between con-

tact and coil

Between open

2,500 Vrms

Nominal switching

capacity

Rating

(resistive)

Max. switching power

1,500 VA, 180 W

30 V DC, 440 V AC

6 A DC, AC

Operate time*⁴

Max. switching voltage

Approx. 17 ms

Approx. 7 ms

Approx. 18 ms

Approx. 6 ms

(at nominal voltage)

Release time (without diode)*⁴

(at nominal voltage)

Max. carrying current

Mechanical (at 180

cpm) (resistive)

Expected

life (min.

10⁷

Electrical (at 20 cpm)

3×10⁴*¹

10⁵

Temperature rise

Max. 45°C with nominal coil voltage

operations)

(at nominal voltage)

and at 6 A switching current

Functional*⁵

Destructive*⁵

Functional*⁷

Min. 294 m/s²{30 G}

Min. 980 m/s²{100 G}

117.6 m/s²{12 G}, 10 to 55 Hz

at double amplitude of 2 mm

117.6 m/s²{12 G}, 10 to 55 Hz

at double amplitude of 2 mm

Shock

resistance

Coil (at 25°C 77°F

Nominal operating power

)

500 mW

Remarks

Vibration

resistance

* Speciﬁcations will vary with foreign standards certiﬁcation ratings.

More than 10⁵operations when applying the nominal switching capacity to one

side of contact pairs of each Form A contact and Form B contact

^*2Measurement at same location as " Initial breakdown voltage " section

^*3Detection current: 10mA

Destructive

Conditions for oper-

ation, transport and

Ambient

temp.

–40°C to +70°C –40°F to +158°F

storage*

^*4Excluding contact bounce time

(Not freezing and

condensing at low

temperature)

^*5Half-wave pulse of sine wave: 11ms; detection time: 10µs

^*6Half-wave pulse of sine wave: 6ms

Humidity

5 to 85% R.H.

^*7Detection time: 10µs

Unit weight

37 g 1.31 oz

47 g 1.66 oz

^*8Refer to 5. Conditions for operation, transport and storage mentioned in

AMBIENT ENVIRONMENT (Page 61).

ORDERING INFORMATION

TYPICAL APPLICATIONS

• Signal

• Escalator

Ex. SF

DC 12 V

• Elevator

Contact arrangement

Coil voltage

• Medical Instruments

• Railway

• Factory Automation

2: 2 Form A 2 Form B

3: 3 Form A 1 Form B

4: 4 Form A 4 Form B

DC 5, 9, 12, 18, 21,

24, 36, 48, 60 V

UL/CSA, TÜV, SEV approved type is standard (SF2, SF4)

TÜV approved type is standard (SF3)

258

12 3 4 5 6 7

中文翻译

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与SF3-DC21V相关器件

型号	品牌	获取价格	描述	数据表
SF3-DC24V	NAIS	获取价格	POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation
SF3-DC36V	NAIS	获取价格	POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation
SF3-DC48V	NAIS	获取价格	POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation
SF3-DC5V	NAIS	获取价格	POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation
SF3-DC60V	NAIS	获取价格	POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation
SF3-DC60V	PANASONIC	获取价格	Safety Relay, 3PST, Momentary, 0.008A (Coil), 60VDC (Coil), 500mW (Coil), 6A (Contact), 30
SF3-DC9V	NAIS	获取价格	POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation
SF3F-002GF-P2.0	JST	获取价格	信号电路或电源电路连接器，适用于工厂自动化、重型电机等一般工业设备。
SF3F-002GI-P2.0	JST	获取价格	信号电路或电源电路连接器，适用于工厂自动化、重型电机等一般工业设备。
SF3F-002T-P2.0	JST	获取价格	信号电路或电源电路连接器，适用于工厂自动化、重型电机等一般工业设备。

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